04 Color Perception

04 Color Perception - iii Evidence of “Anomalous Trichromats” wherein their perception of one of the colors is weaker so they over compensate

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04 Color Perception I. Types of Color Perception a. Trichromany (Young-Helmholtz) Theory – primarily three types of color receptors exist (red, green and blue) of which combinations of excitation leads to the perception of all colors i. 1. Only one type of wavelength yields the same RGB ratio, so every color is unique ii. 1. This type of color perception would yield the same perception for colors on either side of the spectrum and we’d then only be able to detect shades of three colors
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Unformatted text preview: iii. Evidence of “Anomalous Trichromats”, wherein their perception of one of the colors is weaker, so they over compensate for that loss when mixing colors to match a given color b. Opponent Process Theory – three types of receptors processes two opposing colors each, one when excited and one when inhibited (red—green, blue—yellow, black—white) i. ii. Evidence that certain receptor fields react to red in center and green in surround, etc…...
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This note was uploaded on 04/17/2008 for the course PSC 231 taught by Professor Post during the Fall '08 term at UC Davis.

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